Species · Utah · BBS 2025 Release · 1966–2024
Lesser Goldfinch Population Trend in Utah
Lesser Goldfinch in Utah has surged: up 89% on the route-weighted index since 1987.
+89%Since 1987
51Routes In State
37Years
Notable Lesser Goldfinch Trends in Utah
long arc increasecomputed index
Lesser Goldfinch has surged in Utah: up 89% on the route-weighted index since 1987.
Lesser Goldfinch Population Forecast in Utah
If the recent trend holds, Lesser Goldfinch in Utah is projected to fall about 14% by 2029 — from 0.54 in 2024 to a central estimate of 0.47 (95% range 0.10–0.83). A 5-year backtest shows a typical error of ±36.3%, with 100% of held-out values landing inside the 95% band.
-14%Change by 2029
0.47Projected 2029 index
0.10–0.8395% range
±36.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.44 | 0.07 | 0.81 |
| 2026 | 0.45 | 0.08 | 0.82 |
| 2027 | 0.45 | 0.09 | 0.82 |
| 2028 | 0.46 | 0.09 | 0.83 |
| 2029 | 0.47 | 0.10 | 0.83 |
Lesser Goldfinch Survey Routes in Utah
| Newcastle | 15 | 2022 | 1997 |
| Shivwitz | 8 | 2024 | 1993 |
| Kamas | 6 | 2024 | 2013 |
| Dixie Nf | 5 | 2016 | 1993 |
| Iron Springs | 4 | 2018 | 1989 |
| Alton 2 | 4 | 2024 | 2021 |
| Moab | 4 | 2022 | 1987 |
| Aneth | 3 | 2024 | 2004 |
| Soapstone | 3 | 2022 | 2016 |
| La Sal | 3 | 1998 | 1998 |
| Pine Creek | 3 | 2023 | 2010 |
| Hardware Ranch | 3 | 2023 | 2023 |
| La Sal 3 | 3 | 2024 | 2010 |
| Moon Lake 2 | 2 | 2022 | 2013 |
| Book Ridge | 2 | 2016 | 2016 |
| Woodruff | 2 | 2023 | 2023 |
| Navajo Lake | 2 | 2006 | 1996 |
| Lynn | 2 | 2011 | 2011 |
| Vernon | 2 | 2019 | 2016 |
| Lake Powell | 2 | 2009 | 2005 |
| Hatch | 2 | 2024 | 1994 |
| Grantsville | 2 | 2019 | 2008 |
| Ferron | 2 | 2000 | 2000 |
| Alton | 2 | 2019 | 1998 |
| Ant Flat-Ogden Can | 2 | 2021 | 2021 |
Lesser Goldfinch Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.